The 3M stuff just sounded like an advanced form of dyed tint to me.
After doing some research around my local area, I decided to go with the
FormulaONE Pinnacle Series ceramic tint. I chickened out with the darkness (I did 50% front, 35% back), b/c I didn't want the California Police f'ing with me. If I was anywhere else, I would have gone darker.
Regardless of your tint selection, it seems like getting the Lifetime Warranty or something similar is the most important thing, b/c then you have the safety net.
Sorry, no pics yet.